13. 7y - 5y + 15 = y + 8

Find the solution of system of equation y= x-4 y=4x+2

Equation for the calculation double 2 and then add 5

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.